Objetivos: Examinar diferencias en rasgos negativos de personalidad de acuerdo al rubro ocupacional y tipo de puesto (con o sin personal a cargo). Los resultados se analizan desde el modelo denominado Tríada Oscura (Palthus & Williams, 2002). Participantes: 142 empleados (66 hombres, 76 mujeres); edad promedio: 40.6 años (DE=12.5). La mayoría residía en Buenos Aires (94.4%). Materiales: Encuesta sociodemográfica y de datos laborales; Triada Oscura (Jones & Paulhus, 2014/adaptación Salessi & Omar, 2018). Resultados: en primer lugar, se categorizó las ocupaciones de acuerdo al tipo de tareas predominantes en la muestra analizada, dando lugar a cinco categorías relacionadas a rubros laborales (abogacía/legal, salud, educación, comercial, industrial). Luego, a partir de análisis univariados (ANOVA) se determinó que los empleados que se dedican a los rubros abogacía/legal e industrial presentan mayores niveles del rasgo psicopatía [F = 1,196; 4 gl; p < .05]. Asimismo, mediante pruebas t se halló que quienes tienen personal a cargo presentan mayores niveles de narcisismo [t = 2.01, p < .05]. Por último, un análisis multivariado de la varianza (MANOVA) no mostró interacción entre el rubro laboral y el tipo de puesto (Lambda de Wilks = .881; F = 1,406; 4 gl; p > .05, n2 = .041). Palabras clave Rasgos negativos - Tríada oscura - Empleados ABSTRACT STUDY OF NEGATIVE PERSONALITY TRAITS AT WORK Objectives: The aim of this study was examining differences in negative personality traits according to the occupational category and type of position (with or without staff in charge). The theoretical perspective for the analysis of the results is the model called Dark Triad (Palthus & Williams, 2002). Participants: 142 employees (66 male, 76 female); mean age: 40.6 years old (SD=12.5). Most of them lived in Buenos Aires (94.4%). Materials: Sociodemographic and job data Survey; Dark Triad (Jones & Paulhus, 2014 / adaptation of Salessi & Omar, 2018). Results: firstly, occupations were categorized according to the type of predominant tasks in the analyzed sample, generating five occupational categories (legal, health, education, commercial, industrial). Then, using univariate analysis (ANOVA) it was determined that employees who work in legal and industrial tasks, have higher levels of psychopathy trait [F = 1,196; 4 gl; p < .05]. In addition, t tests were conducted. It was determined that those who have personnel in charge present higher levels of narcissism [t = 2.01, p <.05]. Finally, a multivariate analysis of variance (MANOVA) was run. No interaction was found between the occupational category and type of position (Lambda de Wilks = .881; F = 1,406; 4 gl; p > .05, n2 = .041). Key words Negative traits - Dark triad - employees